Nitriding of titanium by hollow cathode assisted active screen plasma and its electro-tribological properties

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dc.contributor.authorDomínguez-Meister, Santiago
dc.contributor.authorIbáñez, Iñigo
dc.contributor.authorDianova, Anastasia
dc.contributor.authorBrizuela, Marta
dc.contributor.authorBraceras, Iñigo
dc.contributor.institutionTecnalia Research & Innovation
dc.contributor.institutionINGENIERÍA DE SUPERFICIES
dc.date.issued2021-04-15
dc.descriptionPublisher Copyright: © 2021 Elsevier B.V.
dc.description.abstractTitanium presents good corrosion resistance, a high strength-to-weight ratio, but poor tribological properties. However, these can be enhanced by nitriding processes. Hollow cathode assisted active screen plasma has proved to be an effective and fast nitriding technique. In this work, the effect of process parameters (hollow cathode induced temperature and plasma intensity, electrical bias…) on the resulting surface microstructure (XRD, SEM/EDS), finishing and hardness of titanium (TiGr4) have been studied. Additionally, the electro-tribological properties have been evaluated on a ball on cylinder reciprocating configuration. The results show that hollow cathode assisted active screen plasma nitriding of titanium can produce titanium nitride surfaces with thicknesses far exceeding those typical in PVD coatings. Moreover, higher plasma processing intensities can generate same layer thicknesses at lower temperatures, minimizing the deleterious effect on grain size growth. Finally, monitoring of the electrical contact resistance can provide valuable information concerning the evolution of the status of the surfaces.en
dc.description.statusPeer reviewed
dc.format.extent1
dc.format.extent10704730
dc.identifier.citationDomínguez-Meister , S , Ibáñez , I , Dianova , A , Brizuela , M & Braceras , I 2021 , ' Nitriding of titanium by hollow cathode assisted active screen plasma and its electro-tribological properties ' , Surface and Coatings Technology , vol. 411 , 126998 , pp. 126998 . https://doi.org/10.1016/j.surfcoat.2021.126998
dc.identifier.doi10.1016/j.surfcoat.2021.126998
dc.identifier.issn0257-8972
dc.identifier.otherresearchoutputwizard: 11556/1089
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85101329276&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofSurface and Coatings Technology
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsHollow cathode
dc.subject.keywordsActive screen plasma
dc.subject.keywordsNitriding
dc.subject.keywordsTitanium
dc.subject.keywordsTribology
dc.subject.keywordsElectrical contact resistance
dc.subject.keywordsHollow cathode
dc.subject.keywordsActive screen plasma
dc.subject.keywordsNitriding
dc.subject.keywordsTitanium
dc.subject.keywordsTribology
dc.subject.keywordsElectrical contact resistance
dc.subject.keywordsGeneral Chemistry
dc.subject.keywordsCondensed Matter Physics
dc.subject.keywordsSurfaces and Interfaces
dc.subject.keywordsSurfaces, Coatings and Films
dc.subject.keywordsMaterials Chemistry
dc.subject.keywordsFunding Info
dc.subject.keywordsThis work was supported by the Economic Development Department at the Basque Government under the Elkartek Frontiers grants (KK2019/00077 and KK-2020/00108).
dc.subject.keywordsThis work was supported by the Economic Development Department at the Basque Government under the Elkartek Frontiers grants (KK2019/00077 and KK-2020/00108).
dc.titleNitriding of titanium by hollow cathode assisted active screen plasma and its electro-tribological propertiesen
dc.typejournal article
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